Authorization in enterprise-wide distributed system: a practical design and application

As companies migrate from a centralized to a distributed computing environment, the administration and management of security policies, in particular authorization policies, is becoming an increasingly difficult task. The paper considers the design of an authorization system that is suitable for distributed applications. It discusses the architectural design principles, describes the constructs of the authorization policy language and outlines the authorization service and components involved. The paper gives some example policy specifications and illustrates how privileges are specified and evaluated, as well as how privilege resolutions are achieved